<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
</head>
<body>
  <div id="demo">
    <button @click='$destory()'>destory vm</button>
    <p ref='content2'v-show="isshow">加油加油</p>
    <h2 ref="content">{{isShow?'isShow是ok':'isShow不ok'}}</h2>
    <p>{{isShow}}</p>
  </div>
  <script src="../js/vue.js"></script>
  <script>
    new Vue({
       el:"#demo",
       data(){
         return{
           isShow:true
         }
       },
    })
  </script>
</body>
</html>